Ambient light detection and hyperlapse video generation
Hyperlapse imaging is described. A device may include a camera, a sensor and a data store. The camera is configured to capture images. The sensor detects ambient light properties. Captured images and the ambient light properties are processed in bulk to generate a hyperlapse video.
1. A method comprising:
capturing, with a camera of a device, a sequence of raw images, wherein image processing operations of the camera are suspended while the sequence of raw images is being captured;
detecting ambient light properties for at least some of the raw images in the sequence; and
generating a hyperlapse video by performing bulk image processing operations on the sequence of raw images and the ambient light properties.
2. The method of claim 1 , wherein the device is a headset,
and wherein a smartphone performs the bulk image processing operations.
3. The method of claim 1 , wherein the bulk image processing operations include:
analyzing exposure levels for each of the raw images in the sequence; and
adjusting the exposure level of at least one of the raw images based on the analyzed exposure levels.
4. The method of claim 1 , wherein the device includes an ambient light sensor (ALS), and wherein the ambient light properties are detected by the ALS.
5. The method of claim 1 , further comprising:
storing the raw images to a data store within the device; and
responsive to a number of the raw images stored in the data store exceeding a threshold amount:
transferring the stored raw images and the ambient light properties to an image processing device.
6. The method of claim 1 further comprising:
bypassing an image signal processing (ISP) pipeline of the camera during the capturing of the raw images; and
concurrent with the capture of the raw images, adjusting one or more of an exposure setting of the camera and a color setting of the camera based on the ambient light properties.
7. The method of claim 1 further comprising:
suspending image processing operations while the device is in a low-power mode; and
responsive to the low-power mode being disabled, performing the bulk image processing operations, wherein completion of the image processing operations generates the hyperlapse video.
8. The method of claim 1 further comprising:
storing the captured images and the ambient light properties on a data store within the device.
9. The method of claim 8 , wherein the bulk image processing operations are performed after a threshold amount of the captured images are stored on the data store.
10. A device comprising:
a camera configured to capture images;
a sensor configured to detect associated ambient light properties for at least some of the captured images; and
a data store, wherein after a threshold amount of captured images are stored to the data store, the stored captured images and the associated ambient light properties are processed in bulk to generate a hyperlapse video.
11. The device of claim 10 , wherein the device is a headset, and
wherein a smartphone processes, in bulk, the stored captured images and the associated ambient light properties to generate the hyperlapse video.
12. The device of claim 10 , wherein the processing in bulk, the stored captured images and the associated ambient light properties to generate the hyperlapse video includes:
analyzing exposure levels for each of the captured images; and
adjusting the exposure level of at least one of the captured images based on the analyzed exposure levels.
13. The device of claim 10 , wherein the sensor includes an ambient light sensor (ALS).
14. The device of claim 10 , wherein the camera is further configured to bypassing an image signal processing (ISP) pipeline of the camera during the capture of the images,
and wherein concurrent with the capture of the images, one or more of an exposure setting of the camera and a color setting of the camera are adjusted based on the associated ambient light properties detected by the sensor.
15. The device of claim 10 further comprising:
suspending image processing operations while the device is in a low-power mode; and
responsive to the low-power mode being disabled, performing the processing, in bulk, of the captured images and the associated ambient light properties to generate the hyperlapse video.
16. The device of claim 10 , wherein at least one image captured is a high dynamic range (HDR) frame.
17. The device of claim 10 , wherein the device is a headset.
18. A method comprising:
suspending, by an image processing device, image processing operations while in a low-power mode;
capturing a sequence of images while in the low-power mode;
detecting ambient light properties for at least some of the images; and
responsive to the low-power mode being disabled, performing bulk image processing operations by the image processing device using the sequence of images and the ambient light properties.
19. The method of claim 18 , wherein completion of the bulk image processing operations generates a hyperlapse video.
20. The method of claim 18 , further comprising:
detecting, via a position sensor, associated gyroscope data relating to at least some of the images; and
wherein the bulk image processing operations include:
generating a plurality of image frames using the sequence of images;
adjusting one or more of a rotation, orientation, or position of at least one of the image frames based on the gyroscope data; and
generating a video using the plurality of image frames, including the at least one adjusted image frame.